baber/WOPTO huggingface dataset:
Patent GB-652994-A (GB)
Title: Improvements in or relating to a method of manufacturing electric discharge tubes
IPC: H01J9/04
Filed: 1948-02-05
Abstract: 652,994. Thermionic valves. PHILIPS ELECTRICAL, Ltd. Feb. 5, 1948, No. 3400. Convention date, Feb. 8, 1947. [Class 39 (i)] A zig-zag filament 3, after being wound on a templet, has its free ends and lower bights secured under metal tabs 12, 13 on an insulating strip 11, strip and filament together forming a separate unit. The filament is then dipped into a bath and coated with emissive material, for example cataphoretically, after which the tips of the free bights are de-coated by reversing the current, and the templet removed. The anode and grid having been assembled separately, the filament is then inserted into position through slots in the centring micas 7, 8. Tensioning springs 10 attached to the upper mica 7 engage the upper bights, pulling up the strip 11 firmly against mica 8 and the grid supports, and centring the filament limbs by holding them taut against the edge of the slots. Flexible leads 14 supply current to the filament.
Patent GB-1448581-A (GB)
Title: Applicators
IPC: B01L3/02
Filed: 1973-01-23
Abstract: 1448581 Applicator for chromatography SHANDON SOUTHERN INSTRUMENTS Ltd 10 Jan 1974 [23 Jan 1973] 3431/73 Heading B1H An applicator for forming on a substrate a number of spaced colinear liquid streaks each having substantially the same volume of liquid per unit length comprises a body portion supporting a colinear array of spaced-apart single isolated straight applicating strands of similar dimension. "Strands" are defined as wires or thin narrow strips having lengths large in relation to widths and thicknesses. The strands may be of stainless steel strip, each mounted in a plastics block, the blocks being in turn mounted in a holder.
Patent GB-362227-A (GB)
Title: Improvements in or relating to vaporizers
IPC: F02M69/00
Filed: 1931-02-03
Abstract: 362,227. Vaporizers. LEHMANN, L., 25, Rue de Turenne, Paris, and SCHEIBLING, J., 17, Rue Gelier, Strasbourg, both in France. Feb. 3, 1931, No. 3505. Convention date, Feb. 3, 1930. [Class 7 (iii).] Petrol under pressure is supplied to a vaporizer through a valve 2 interposed between a petrol feed pipe 1 and an electrically - heated vaporization chamber 17 containing a spiral 5 of nichrome wire; the valve 2 is controlled by the pressure of the vaporized fuel in the chamber 17. The vapour is delivered to the induction pipe 13, through a jet 15 past a needle valve 8 operated by a lever 11, which simultaneously operates the throttle valve 12.
Patent GB-1276811-A (GB)
Title: Method of making a graded stencil
Inventor: DODD JOHN ALTON JR
IPC: H01J9/14
Filed: 1970-01-26
Abstract: 1276811 Photo-masks R C A CORPORATION 26 Jan 1970 [24 Jan 1969] 3579/70 Headings G2A G2J and G2M [Also in Divisions B6 and H1] Graded stencils (i.e. photo-masks) for use in the manufacture of shadow-mask cathode ray tubes having an array of opaque or transparent areas on a transparent or opaque background respectively, the sizes of the areas having a progressive variation from a maximum at the centre of the array to a minimum at the edges thereof, are prepared by a process comprising (1) exposing a light-sensitive film to a pattern which forms on the film an array of lighted areas of uniform size, the exposure time of at least the areas in the array varying from a maximum at the centre to a minimum at the edges, and (2) developing, specifically a hexagonal pattern of uniformly sized dots is mechanically plotted thus forming a fragmentary positive stencil, which is photographically reduced to form a negative stencil which is photographically reduced and stepped to form a positive stencil having dots whose size is equal to the smallest size required in the shadow mask; the positive stencil is used to form a corresponding negative stencil which is used together with the shutter described below to form either the required graded positive stencil or a negative stencil which is used to form the required graded positive stencil. The exposure may be effected in a single step; alternatively it may consist of a uniform exposure to produce dots of a uniform size and then a radially variable overall exposure. The shutter, Fig. 8 comprises a shutter plate 41 having an aperture 43 especially shaped to  produce the required exposure time variation. The plate 41 is fixed above an aperture 46, to an opaque plate 45 rotatably mounted on a support platform 47 via rollers 47 and 51. In use, plate 45 and hence aperture 43 is rotated 465 times to contact expose stationary stencil 25, as described above.
Patent GB-879124-A (GB)
Title: Improvements in or relating to aromatic polyesters
IPC: C08G63/692
Filed: 1958-02-04
Abstract: Polyesters having cold-drawing properties and having both a crystalline form (melting point 195 DEG -245 DEG C.) and an amorphous form (softening range 65 DEG -95 DEG C.) are made by polycondensing an aromatic dicarboxylic acid (or ester thereof) with a mixture of dihydric alcohols comprising 90-60 mol per cent of p-xylylene glycol and 10-40 mol per cent of an alkylene glycol.  The aromatic dicarboxylic acid may be terephthalic, p, p1-diphenyldicarboxylic, diphenoxyethane-4, 41-dicarboxylic, diphenoxy-p-xylene-4, 41-dicarboxylic, or p-phenylenediacetic acid.  The alkylene glycol may be of formula:  <FORM:0879124/IV (a)/1> where R is hydrogen or alkyl, X is a methylene or alkylene radical and n is 0-30. Polycondensation may be effected by reacting all three components simultaneously or by first reacting the aromatic dicarboxylic acid (or ester) with p-xylylene glycol, then adding the alkylene glycol and effecting further reaction.  Stabilizers such as polyhydric alcohols or alkyl or aryl phosphates or phosphites may be included in the polycondensation mixture. Examples describe the manufacture of polyesters by reacting dimethyl terephthalate, p-xylylene glycol and ethylene-, tetramethylene- or hexamethylene-glycol.  Some of them are soluble in acetone, dimethyl formamide, acetyl morpholine and propylene carbonate.
Patent GB-1166436-A (GB)
Title: Pebble Bed Heat Exchanger
Inventor: BRZOZOWSKI WOJCIECH
IPC: F28C3/14
Filed: 1968-01-24
Abstract: 1,166,436. Thermal regenerators. COMMISSARIAT A L'ENERGIE ATOMIQUE, and INSTITUT BADAN JADROWYCH. 24 Jan., 1968 [2 Feb., 1967], No. 3640/68. Heading F4K. A thermal regenerator of the pebble bed type comprises upper and lower enclosures A, B through which respectively pass upwardly flows of a heating gas and a gas to be heated by the pebbles of refractory material which move downwardly through the chambers via a junction assembly C having a spout composed of elements 48, 52, 58 of refractory material in vertically stacked relation to delimit a vertical duct, each element being formed of similar sectors to avoid heat expansion stresses. The element 48 comprises a frusto-conical outer wall adapted to bear on a cooled, metallic support plate 44 which also supports the housing 40 and lining 10 of the upper enclosure. The central element 52 is supported on a first domical vault 54 which serves as a thermal barrier between the plate 44 and the gas discharged from the lower enclosure into an outlet duct 32 via a collector space 56 formed between the vault 54 and a second domical vault 60 having ducts 62 therein for pasasge of the gas and which vault supports the bottom element 58 of the spout. The heating gas enters the upper enclosure through ducts 18 and passages 20 which are partially obstructed by piled balls 46 to prevent entry thereinto of the pebbles.
Patent GB-432898-A (GB)
Title: Improved process for the production of nitric acid and apparatus therefor
IPC: C01B21/26
Filed: 1934-02-05
Abstract: <PICT:0432898/III/1> Gases obtained in the denitration of residual acid from the manufacture of liquid nitric esters such as nitroglycerine are converted into nitric acid by scrubbing in counter - current with dilute nitric acid in an apparatus resistant to the corrosive action of the gases, whereby the corrosive impurities are removed, and absorbing the treated gases in water or dilute nitric acid in an absorption tower made of chrome iron alloy.  The denitration gases enter at 2 into a tower 1 of high silicon iron alloy or ceramic material packed with crushed quartz, ceramic rings or the like.  Air enters at 3, while acid formed in the upper part of the system descends tower 1, scrubbing the gases and leaving at 4. The scrubbed gases pass to an absorption tower 6 of the bubbler cap type constructed of chrome iron alloy.  Water enters at 7 and absorbs the nitrogen oxides, waste gases leaving at 8.  Cooling coils 9 connected to a header 11 are placed in the liquid trays surrounding the bubbler caps.  Quartz, ceramic rings or metal grids 12 are also placed in the liquid.  Specification 433,272, [Group XII], is referred to.
Patent GB-508879-A (GB)
Title: Improvements relating to suspenders, for socks or stockings
IPC: A41F11/02
Filed: 1938-02-07
Abstract: 508,879. Sock &c. suspenders. ADAMS, W. H. G., and ADAMS & CO., Ltd., W. J. Feb. 7, 1938, No. 3756. [Class 141] A suspender for socks or stockings of the kind comprising elastic fabric incorporating rubber thread, and an adjustable running grip device is provided in addition with a length of inelastic fabric upon which the running grip device is provided in addition with a length of inelastic fabric upon which the running grip device is arranged to engage. In the form shown, the suspender consists of a loop d of fabric encasing rubber threads to which is adhesively secured at g a length of inelastic material e upon which the running grip f is arranged to engage. The suspender is provided with terminal clips a, b, the latter for attachment to a garment c. In a modification, the suspender is permanently secured to the garment.
Patent GB-1175075-A (GB)
Title: Differential Brakes
Inventor: KERSHNER OSBORN ARTHUR
IPC: F16H48/30
Filed: 1967-01-26
Abstract: 1,175,075. Differential gear; fluid pressure brakes. LAMBERT BRAKE CORP. 26 Jan., 1967 [27 Jan., 1966], No. 3968/67. Headings F2D and F2F. [Also in Division B7] A differential locking mechanism for use in a vehicle having first and second drive gears 14, 18 coupled for rotation with respective drive wheels, which are driven from an engine through a gear train and a differential, comprises first and second end members 32 and 56, securable to respective drive gears 14 and 18, and a friction clutch operative between the end members. In Fig. 3 the friction clutch comprises friction discs 48 mounted on an inner member 50 rotatable with the gear 14 and friction discs 54 rotatable with and mounted on an outer member 56 bolted to the gear 18. The clutch is engaged by an annular piston 62 supplied with hydraulic fluid through a passage 78 in the rotatable outer member 56 and an annular passage 80 and a passage 72 in a non-rotatable manifold 70 which is held in position by a tongue 82 and a flanged ring 84. In a modification (Fig. 6, not shown) hydraulic fluid is supplied to the piston 62 through a passage (156) through the gear (150) from a manifold (132) secured to a transmission housing 134. Individual brakes for the two drive wheels are operated by respective pedalcontrolled hydraulic brake valves 91, 92 of a hydraulic system (Fig. 5) having a pump 98 which normally supplies the clutch engagement mechanism 116 through lines 110, 112 and a valve 114. Should for example, the brake valve 9 be operated, pressure hydraulic fluid is supplied through the line 102 to actuate the left hand brake 104 and through the line 122 to actuate the four-way valve 114 to exhaust the mechanism 116 to a reservoir 100 through lines 118 and 120 and thus release the differential locking mechanism to permit differential braking to assist steering of the tractor. Should both valves 91 and 92 be operated the differential remains locked. In an alternative (Fig. 1, not shown) the differential locking mechanism is controlled manually and the valves 91, 92 and 114 are dispensed with.
Patent GB-247582-A (GB)
Title: Improvements in the manufacture and production of liquid and other hydrocarbons and derivatives thereof from coal and other like materials
IPC: C10G1/06
Filed: 1926-02-11
Abstract: 247,582. I. G. Farbenindutsrie Akt.- Ges. Feb. 14,1925, [Conventiondate]. Hydrogenationdestructive.-The process of obtaining liquid products from solid carbonaceous substances, e.g. coal, peat, lignite, or wood, by the action of hydrogen or reducing gases containing free or combined hydrogen at a high temperature and a pressure of at least 50 atmospheres is conducted in presence of nitrogen compounds mixed or not with indifferent solids or with other catalysts, such as iron and cobalt. Suitable compounds are ammonia, its compounds e.g. ammonium sulphide, and nitrides comparatively stable against water e.g. silicon or titanium nitride. Ammonia may be formed in the reaction vessel from nitrogen and hydrogen and a suitable catalyst such as iron activated e.g. by the addition of alkalies and alumina, or as activated barium compounds or a carbide of a rare earth. The hydrogen may be produced in the reaction vessel by the action of steam on coal, carbon-monoxide, or hydrocarbons. Water gas, ammonia, or mixtures of hydrogen with carbon dioxide or sulphuretted hydrogen or steam or methane or other hydrocarbon may replace the hydrogen. In an example, air-dried lignite alone or as a paste with the product of the process is continuously passed into a reaction vessel heated to 500‹ C. and is acted upon at 100 atmospheres pressure bv a stream of hydrogen containing 1 per cent of ammonia. The issuing gases are cooled to condense a thin oil containing traces of phenols. In a further example a mixture of nitrogen and hydrogen with a proportion of ammonia acts on brown coal At 500‹ C. and 200 atmospheres. Convenient proportions are 4 lb. of hydrogen to 10 lb. of coal. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use simultaneously of more than one nitrogen catalyst, e.g. of ammonia and nitrides, and the use of atmospheric pressure. This subject-matter does not appear in the Specification as accepted.
Patent GB-1458071-A (GB)
Title: Method and apparatus for gas/liquid separation
IPC: B01D45/16
Filed: 1974-01-29
Abstract: 1458071 Separator for removing liquid particles from gas SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 29 Jan 1974 04032/74 Heading BIT A gas stream passes through curved pipe 2, causing entrained liquid to deposit on the outer wall 12 of the curve and to pass through a slot 9 of semi-annular form into annular chamber 4, from which the liquid discharges at 11 and the gas which entered slot 9 is returned through opening 10 into the main gas stream passing along straight pipe 5. A pair of angle iron gutters 14 welded to the inside of the curved pipe diverge from inlet 17 to the outer ends of slot 9 (Figs. 4, 5, not shown) to guide the liquid to slot 9.
Patent GB-772034-A (GB)
Title: Polymeric materials prepared from polyvinyl compounds
IPC: C08F261/04
Filed: 1955-02-10
Abstract: Graft polymers are made by polymerizing, e.g. in aqueous media, a monomeric material containing from 50 to 100 per cent by weight of vinylidene chloride with a water-soluble vinyl alcohol polymer, the proportion of the vinylidene chloride being from 85 to 10 per cent and the water-soluble polymer from 15 to 95 per cent of the total weight of monomeric material and water-soluble polymer.  The polymerization is preferably effected in the presence of a catalyst. Chain terminators may also be present.  The monomeric material may consist solely of vinylidene chloride or it may be mixed with one or more other -CH=C< monomers such as styrene, alpha-methylstyrene, p-acetaminostyrene, alpha-acetoxystyrene, acrylonitrile, methacrylonitrile, vinyl chloride, methyl vinyl ether, isopropyl vinyl ether, methyl isopropenyl ketone, ethyl isopropenyl ketone, methyl vinyl ketone, ethyl vinyl ketone, dimethyl maleate, diethyl maleate, diisopropyl maleate, dimethyl, diethyl, or diisopropyl fumarate, acrylic acid, methacrylic acid, fumaronitrile, N-vinyl phthalimide, ethylene, acrylamide, N-substituted acrylamides, vinyl pyridines, maleamide, N-substituted maleamides, fumaramide, N-substituted fumaramides, itaconamide, N-substituted itaconamides, citraconamide, N - substituted citraconamides, methyl and propyl maleamate, N-substituted alkyl maleamates, methyl to butyl fumaramates, N-substituted alkyl fumaramates, methyl to butyl itaconamates, N-substituted alkyl itaconamates, methyl to butyl citraconamates, N-substituted alkyl citraconamates, methyl to butyl acrylates and methacrylates, methyl and ethyl ethacrylates, and vinyl acetate, propionate, butyrate and isobutyrate.  An extensive list of the N-substituted compounds is given.  The vinyl alcohol polymer may be polyvinyl alcohol or a copolymer of vinyl alcohol with one or more of the monomers listed above, e.g. a hydrolysed copolymer of vinyl acetate and isopropenyl acetate.  When the graft polymerization is effected in aqueous emulsion, suitable emulsifiers are sodium lauryl sulphate, sodium isobutyl naphthalene sulphonate, sulphosuccinic acid esters, their salts, and amine addition products, alkali metal salts of fatty acids containing from 12 to 20 carbon atoms, sulphonated fatty acid amides and their alkali metal salts, and the reaction products of ethylene oxide with aliphatic alcohols and amines.  Chain terminators mentioned are hexyl, octyl, lauryl, and myristyl mercaptans.  The catalyst may be hydrogen peroxide, sodium, potassium, or ammonium persulphate or perborate, sodium or potassium percarbonate, ozone, peracetic acid, triacetone peroxide, urea peroxide, benzoyl peroxide, acetyl benzoyl peroxide, lauroyl peroxide, or a mixture of potassium persulphate and potassium metabisulphite.  The graft polymers may be made into fibres or films.
Patent GB-588425-A (GB)
Title: Improvements in or relating to coating compositions and to fabrics coated therewith
IPC: C09D167/08
Filed: 1945-02-19
Abstract: Coating compositions for rendering fabrics resistant to poison gases, solvents, &c. comprise mixtures of an alkyd resin, a polyvinyl acetal resin, and a monohydric alcohol-modified urea formaldehyde resin. The coating after application to the fabric is cured by heating for 1 hour at 240-260 DEG  F.  The coated fabrics may be used as gas capes, tarpaulins, upholstery, ventilating tubes, raincoats, hospital sheeting, cable sheatss.  Examples of coating compositions are given in the Specification.  Castor or cottonseed oil-modified alkyd resins are employed and clay, mica, titanium oxide, barytes, ultramarine blue, chrome yellow, red iron oxide, oxide, whiting, talc, lamp black are used as fillers and pigments.  Paraffin wax, dicapryl phthalate, dibutyl ammonium oleate, dibutyl cellosolve phthalate or sebacate are specified as plasticisers and benzene, toluol, xylol, naphthas esters and ketones as solvents.  The urea resin may be produced as described in Specification 483,399.  The Specification as open to inspection under Sect. 91 states that the urea resin may be replaced by alcohol-modified melamine-formaldehyde resins or by dimethylol urea ethers of monohydric alcohols.  This subject-matter does not appear in the Specification as accepted.
Patent GB-745434-A (GB)
Title: Improvements in or relating to a clip or strap for securing roof sheeting and other component parts of buildings in position
Inventor: GOODMAN DAVID ARCHIBALD SAMARI
IPC: E04D3/36
Filed: 1953-02-13
Abstract: 745,434. Clips. ARCON (PROPRIETARY), Ltd. Feb. 12, 1954 [Feb. 13, 1953], No. 4129/53. Class 44. [Also in Group X] A clip or strap for securing roof sheeting and other component parts of buildings in position comprises a main body portion 1, shaped to hook over and engage a purlin (e.g. tubular) or the equivalent and formed at one end with a part 3 for receiving the end of a screw 5 passed through the sheeting &c., the part 3 consisting of a substantially U-shaped bend in the clip material, one limb 4 of the U having a clearance hole 6 for the screw 5 and the limb 4A, parallel to the limb 4, being tapped at 7 to receive the screw 5. In another embodiment, for clipping on to sheeting rails of rectangular or square section, the main portion of the clip is of L-shape with the free end of the stem of the L formed with a short portion extending parallel to the base of the L. In a further embodiment, as applied to an eaves channel sheeting strap, the body portion is L-shaped but the port 3 is disposed angularly with respect to the body portion.
Patent GB-266340-A (GB)
Title: Improvements in or relating to foot supports
IPC: A61F5/14
Filed: 1927-02-14
Abstract: 266,340. Sochor, H. Feb. 16, 1926, [Convention date]. Foot-arch supports ; bandages.-A foot support consists of a plate 1 provided with a curved slot 3 in which is fixed one end of a bandage 2 which after passing round the foot passes through a second curved slot 5 in the plate 1 and is secured by a tape 4 which is wound round a button 8 on the plate 1. The curvature of the slots 3, 5 causes the bandage 2 to exert pressure chiefly along the centre line of the bandage, the edges remaining free. A pad 6 provided with flaps 7 may be secured over the plate 1. The plate 1 may be replaced by a wire bow, a single opening thus taking the place of the two slots 3, 5, and the bandage may be replaced by two Separate bandages attached to the plate and passed crosswise over the foot. Shaped pieces of rubber may also be inserted between the plate and pad.
Patent GB-682570-A (GB)
Title: An improved overhead land irrigating apparatus
IPC: A01G25/00
Filed: 1951-02-20
Abstract: 682,570. Spray-producers &c. DONNISON, K. L. Feb. 20, 1951, No. 4136/51. Class 69 (iii). A reaction jet rotary sprinkler has at least one distributer arm 8 with a balance arm 10 secured to a tower structure 4 which pivots at the top of a vertical post 1, Fig. 3, comprising a water conduit. The pivot consists of a pin 15 secured to a bar 6 of the structure, which co-operates with a cup bearing 16 supplied with oil through a pipe 22. The structure is continued at 13, Fig. 1, to a point above the pivot to which supporting stays 14 are secured. Water is supplied to the post at 29 and passes upwardly therethrough and then between members 18, 19 to an annular tank 24 carried by the bar 6. A hose 26 from the tank feeds the arm 8, the outlets 9 of which contain rubber or like plugs 31, Fig. 4, housing tubular inserts 30 having slot-shaped outlets. The post is carried on a stand 2, and the balance arm 10 includes a weight 11 and a wind vane 12.
Patent GB-1172212-A (GB)
Title: Hydrostatic Extrusion Apparatus
Inventor: BERESNEV BORIS IVANOVICH
IPC: B21C23/00
Filed: 1968-01-26
Abstract: 1,172,212. Extruding. INSTITUT FIZIKI METALLOV. 26 Jan., 1968, No. 4157/68. Heading B3P. A hydrostatic extrusion apparatus has its die 6 pressed against the extrusion container 1 by an hydraulic drive 5, 10 which is releasably secured to the container by locking means 20 and which is movable both axially and transversely of the extrusion axis. Die 6 is supported for self-alignment on a spherical surface of a member 9 carried by a double-acting hydraulic piston 10 in cylinder 5 which is movable vertically by an hydraulic drive 15, 16 and horizontally by a carriage 12 connected to an hydraulic drive 13. Induction heaters 22 are provided for the die and the extrusion container. In operation, blanks 7 are loaded into the die 6 when the latter is in its inoperative position removed from the container 1. Drive 13 then moves the die into the extrusion axis and drive 16 raises the cylinder 5 into position adjacent the container to which it is then secured by gibs 20 operated by fluid cylinders. Piston 10 is then raised to press the die 6 against the container 1. After extrusion, the product 17 is separated from the discard and the die containing the discard is removed to the inoperative position where the discard is ejected by a press.